6533b827fe1ef96bd1285a6d

RESEARCH PRODUCT

MOCVD deposition of YSZ on stainless steels

Günter BorchardtSébastien ChevalierMartin KiloJ. P. Larpin

subject

ZirconiumMaterials scienceMetallurgyAnalytical chemistryGeneral Physics and Astronomychemistry.chemical_elementSurfaces and InterfacesGeneral ChemistryChemical vapor depositionYttriumAtmospheric temperature rangeCondensed Matter PhysicsSurfaces Coatings and FilmsTetragonal crystal systemchemistryCubic zirconiaMetalorganic vapour phase epitaxyYttria-stabilized zirconia

description

Abstract Yttria stabilized zirconia was deposited on stainless steel using the metal–organic chemical vapor deposition (MOCVD) technique, from β-diketonate precursors. The variation of the evaporation temperatures of yttrium and zirconium precursor allowed to control the level of Y within the film. Over the temperature range 125–150 °C, the Y content increased from 2.5 to 17.6 at.%. X-ray diffraction (XRD) analyses evidenced tetragonal phase of zirconia when the Y content was below 8 at.%, and cubic phase for higher concentration. Sputtered neutral mass spectrometry (SNMS) profiles confirmed that the control and stability of Y precursor temperature were of major importance to guarantee the homogeneity of the deposited films.

https://doi.org/10.1016/s0169-4332(02)01088-7